Moen F9900 Instruction sheet

How to Install an Air Gap
What is an Air Gap?
An Air Gap prevents the backflow of
contaminated discharged water into
the clean water supply. The use of
an Air Gap is required by plumbing
codes for certain kitchen fixtures for
example a dishwasher or Reverse
Osmosis system.
Moen recommends installing an Air
Gap in two installation scenarios:
• A Standard kitchen, Filtration
faucet, and a Moen Four-
Stage Reverse Osmosis System
• A Moen 3-in-1 Water Filtration
Pulldown faucet with a Moen
Four-Stage Reverse Osmosis
System
The instructions below will detail how
to install Moen's 105895 Air Gap.
105895
• Required Sink Hole
Size: 1 1/2"
• Deck
Thickness: Max 1 1/
8"
F9900
The Air Gap:
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Updated: Wed, 13 Dec 2023 21:55:43 GMT
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Parts Legend:
1. Cap
2. Escutcheon
3. Top
Mounting
Nut
4. Body
5. Bottom
Mounting
Nut
6. Outlet
7. Inlet
Installing the Air Gap:
1. Disassemble the Air Gap: Unthread the cap (1),
the escutcheon (2), and the top mounting nut
(3).
2. From under the sink: Slide the body (4) up
through the hole in the deck.
3. From above the sink: Thread the top mounting
nut (3) onto the body (4), leaving about 1/4"
(6mm) of the threads above the sink. Under the
sink, tighten the bottom mounting nut (5).
4. Thread the escutcheon (2) and cap (1) over the
top of the body (4).
Connecting the Air Gap:
Parts Legend from Four- Stage Reverse Osmosis System-INS12980:
A- Manifold
B- Sediment Filter
C- Pre-Carbon Filter
D- Reverse Osmosis Filter
E- Post Carbon Filter
F-Manifold Screws
G- Tank Elbow
H- Cold Water Tee
I-1/4" Black Inlet Tube
J- 1/4" Blue Air Gap Tube
K- 3/8" Blue Air Gap Tube
L- 3/8" White Tank Tube
M- 3/8" Gray Outlet Tube
N-Sealant Tape
O- Saddle Screws and Nut
P- Foam Seal
Q- Drain Saddle
R- Tank
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Installing the Saddle:
1. Punch out the center hole on the Foam Seal (P)
and use it as a template to locate the drilling
position above the sink trap. Mark the location with
a pencil.
2. At the pencil mark location, drill a 1/4" (32mm) hole
through the wall of the drain pipe. Note: Do not
drill through both sides of the pipe.
3. Align the holes on the plate of the Drain Saddle and
the Foam Seal (P). Remove the film from the Foam
Seal (P), and attach it to the inside of the plate of
the Drain Saddle.
4. Aligning with the drip hole, position the Saddle (Q)
on the drain tailpiece and securely using the
Screws and Nuts (O) provided.
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Installing the 3/8" Blue Air Gap Tube (K):
•The Blue Air Gap Tube (K)may be cut for a
taut path to the connector.
•The tube should not drop below 45° from a
vertical position.
•Be careful to not kink the hose
1. Slide the 3/8" Blue Air Gap Tube (K) over the Air
Gap Outlet (6) and secure with it a hose clamp
(sold separately).
2. Route the other end of the 3/8" Blue Air Gap Tube
(K) from the Air Gap Outlet (6) to the connector on
the Saddle (Q).
3. Insert the end of the 3/8" Blue Air Gap Tube (K)
into the connector on the Saddle (Q) approximately
1" (25mm) until it stops.
Installing 1/4" Blue Air Gap Tube (J):
1. Press the elbow retaining ring towards the elbow
and pull on the cap to remove the red cap from the
elbow of the Reverse Osmosis Filter (D).
2. Insert the Flow Restrictor and tube assembly
included with the Reverse Osmosis Filter (D) into
the 1/4" Blue Tube (J) so that the red collar seats
against the tube and leaves 1/8" of the thin, clear
tubing exposed.
3. Insert the end of 1/4" Blue Air Gap Tube (J) with
Flow Restrictor into the Elbow until it stops
(approximately 3/4"). Next slide the other end of 1/
4" Blue Tube (J) over the Air Gap Inlet (7) and it
secure with a hose clamp (sold separately). Verify
that the connections are secure.
Flow Restrictor:
https://solutions.moen.com/Article_Library/How_to_Install_an_Air_Gap
Updated: Wed, 13 Dec 2023 21:55:43 GMT
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For additional information on Moen products visit solutions.moen.com and select the type of product you are repairing.
The guide will contain repair details, troubleshooting and specific information on assembling handles associated with
that style of product.
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